Danish police say mystery submarine seems to have been sunk on purpose

By Teis Jensen and Jacob Gronholt-PedersenCOPENHAGEN (Reuters) - Danish police said on Sunday they had found nobody in the wreck of a submarine owned by an inventor charged with the manslaughter of a woman who had been on board - but added the vessel seemed to have been deliberately sunk.Police have said that Swedish journalist Kim Wall, 30, is missing after taking a ride on Peter Madsen's homemade 17-metre sub, which sank on Friday morning.Madsen was rescued by the navy.